modules/page-modes/youtube-player.js

   1 /**
   2  * (C) Copyright 2012 Scott Jaderholm
   3  * (C) Copyright 2013 Joren Van Onder
   4  *
   5  * Use, modification, and distribution are subject to the terms specified in the
   6  * COPYING file.
   7 **/
   8
   9 require("content-buffer.js");
  10
  11 define_keymap("youtube_player_keymap", $display_name = "youtube-player");
  12
  13 function youtube_player_display_error_message (I, error_message) {
  14     I.minibuffer.message(error_message + ", ensure html5 is enabled for youtube by visiting http://youtube.com/html5");
  15 }
  16
  17 function youtube_player_change_speed (slower) {
  18     return function (I) {
  19         var buf = I.buffer;
  20
  21         // get settings control rows
  22         var settings_control_rows = buf.document.querySelectorAll(".ytp-menu-row");
  23
  24         var speed_buttons = null;
  25         // find speed buttons
  26         for (var i = 0, n = settings_control_rows.length; i < n && ! speed_buttons; ++i) {
  27             if (settings_control_rows[i].innerHTML.indexOf("Speed") != -1) {
  28                 speed_buttons = settings_control_rows[i].querySelectorAll(
  29                     ".ytp-drop-down-menu-content .ytp-drop-down-menu-button");
  30             }
  31         }
  32
  33         if (! speed_buttons) {
  34             youtube_player_display_error_message(I, "No speed buttons found");
  35             return;
  36         }
  37
  38         var current_speed_found = false;
  39         for (var i = 0, n = speed_buttons.length; i < n; ++i) {
  40             if (speed_buttons[i].className.indexOf("ytp-drop-down-menu-button-checked") != -1) {
  41                 // current speed
  42                 current_speed_found = true;
  43
  44                 if (slower && i != 0) {
  45                     dom_node_click(speed_buttons[i - 1], 1, 1);
  46                 } else if (! slower && i != speed_buttons.length - 1) {
  47                     dom_node_click(speed_buttons[i + 1], 1, 1);
  48                 }
  49
  50                 break;
  51             }
  52         }
  53
  54         if (! current_speed_found) {
  55             youtube_player_display_error_message(I, "Current speed button not found");
  56         }
  57     }
  58 }
  59
  60 function youtube_player_click_command (selector, error_message) {
  61     return function (I) {
  62         var buf = I.buffer;
  63         var elem = buf.document.querySelector(selector);
  64         if (elem)
  65             dom_node_click(elem, 1, 1);
  66         else
  67             youtube_player_display_error_message(I, error_message);
  68     };
  69 }
  70
  71 interactive("youtube-player-play-or-pause",
  72     "Click the Youtube html5 player play/pause button.",
  73     youtube_player_click_command(".ytp-button-pause, .ytp-button-play",
  74                                  "No play or pause button found"));
  75
  76 interactive("youtube-player-mute",
  77     "Click the Youtube html5 player mute button.",
  78     youtube_player_click_command("button.html5-volume-button",
  79                                  "No mute button found"));
  80
  81 interactive("youtube-player-fullscreen",
  82     "Click the Youtube html5 player fullscreen button.",
  83     youtube_player_click_command(".ytp-button-fullscreen-enter, .ytp-button-fullscreen-exit",
  84                                  "No fullscreen button found"));
  85
  86 interactive("youtube-player-speed-down",
  87     "Slow down the Youtube html5 player.",
  88     youtube_player_change_speed(true));
  89
  90 interactive("youtube-player-speed-up",
  91     "Speed up the Youtube html5 player.",
  92     youtube_player_change_speed(false));
  93
  94 define_key(youtube_player_keymap, "C-c return", "youtube-player-play-or-pause");
  95 define_key(youtube_player_keymap, "C-c C-m", "youtube-player-mute");
  96 define_key(youtube_player_keymap, "C-c C-f", "youtube-player-fullscreen");
  97 define_key(youtube_player_keymap, "C-c C-[", "youtube-player-speed-down");
  98 define_key(youtube_player_keymap, "C-c C-]", "youtube-player-speed-up");
  99
 100 define_keymaps_page_mode("youtube-player-mode",
 101     build_url_regexp($domain = "youtube", $allow_www = true),
 102     { normal: youtube_player_keymap },
 103     $display_name = "Youtube-Player");
 104
 105 page_mode_activate(youtube_player_mode);
 106
 107 provide("youtube-player");